An update for pcs is now available for openEuler-20.03-LTS-SP4 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2025-1905 Final 1.0 1.0 2025-07-25 Initial 2025-07-25 2025-07-25 openEuler SA Tool V1.0 2025-07-25 pcs security update An update for pcs is now available for openEuler-20.03-LTS-SP4 pcs is a corosync and pacemaker configuration tool. It permits users to easily view, modify and create pacemaker based clusters. Security Fix(es): Tornado is a Python web framework and asynchronous networking library. When Tornado's ``multipart/form-data`` parser encounters certain errors, it logs a warning but continues trying to parse the remainder of the data. This allows remote attackers to generate an extremely high volume of logs, constituting a DoS attack. This DoS is compounded by the fact that the logging subsystem is synchronous. All versions of Tornado prior to 6.5.0 are affected. The vulnerable parser is enabled by default. Upgrade to Tornado version 6.50 to receive a patch. As a workaround, risk can be mitigated by blocking `Content-Type: multipart/form-data` in a proxy.(CVE-2025-47287) An update for pcs is now available for openEuler-20.03-LTS-SP4. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High pcs https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1905 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-47287 https://nvd.nist.gov/vuln/detail/CVE-2025-47287 openEuler-20.03-LTS-SP4 pcs-0.10.5-5.oe2003sp4.aarch64.rpm pcs-snmp-0.10.5-5.oe2003sp4.aarch64.rpm pcs-0.10.5-5.oe2003sp4.src.rpm pcs-0.10.5-5.oe2003sp4.x86_64.rpm pcs-snmp-0.10.5-5.oe2003sp4.x86_64.rpm Tornado is a Python web framework and asynchronous networking library. When Tornado's ``multipart/form-data`` parser encounters certain errors, it logs a warning but continues trying to parse the remainder of the data. This allows remote attackers to generate an extremely high volume of logs, constituting a DoS attack. This DoS is compounded by the fact that the logging subsystem is synchronous. All versions of Tornado prior to 6.5.0 are affected. The vulnerable parser is enabled by default. Upgrade to Tornado version 6.50 to receive a patch. As a workaround, risk can be mitigated by blocking `Content-Type: multipart/form-data` in a proxy. 2025-07-25 CVE-2025-47287 openEuler-20.03-LTS-SP4 High 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H pcs security update 2025-07-25 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1905